Video Modulator with Audio Door Station and CCTV Interface
The JBW-M adaptor converts a standard CCTV camera's signal to a 2-wire signal, compatible with the JF and JB
Open Voice Color Video systems. This allows the utilization of a color CCTV camera and a separate audio door
station (JF-D or JA-D) to be used in place of a JF/JB video door station. A motion detector or other activation
device can be connected to the Sensor input to trigger the system. The CCTV camera can also be connected to a
standard CCTV system for continual viewing and/or recording. The unit is equipped with a relay output to trigger
an external device, such as a DVR or video switcher whenever the audio and video to the Aiphone monitor is on.
WIRING DIAGRAM:
JBW-M Modulator for Standard CCTV camera and Audio-only door station (JF-2MED System)
A1
Door 1
JF-DA/DV/DVF
A2
JF-D
(Optional, only if Sensor
input is not used)
1
2
CCTV Camera
75 Ohm, 1V Peak-to-peak
(Independently powered)
Remote Activation*
(Optional, only with no JF-D
installed)
* Signaling device that provides a
Normally Closed momentary
contact.
- INSTRUCTIONS -
OUT
IN
OFF ON
VIDEO
JBW-M
MASTER
A1
A2
AUDIO
1
2
VIDEO IN
VIDEO OUT
SENSOR
NC
set 75ohm switch to OFF position.
NC
RELAY
NO
NO
SENSOR
NC NC NO NO A1 A2 1 2
75 OHM
JF-2MED
A1
B1
A2
B2
PS-1820UL
+
-
A1
A2
Constant video output for
CCTV monitor, DVR, etc.
When VIDEO OUT is connected,
Normally Open contact for
remote device activation
(i.e. video switcher, DVR, etc.)
RELAY
MASTER
AUDIO
AIPHONE
NOTES:
1. When using the JF-2MED master,
use the JF-D audio door station.
2. Video Output is optional. If not
used, set 75 ohm switch to the
+
ON position.
-
3. SENSOR input can be used only
if there is no JF-D door station
connected. When used, the
camera will turn on when the
sensor device is activated.
Pg. 1
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